Riello GI/EMME 1400 Installation, Use And Maintenance Instructions page 79

Wiring layout key
A1 Electrical control box
B Filter to protect against radio disturbance
B1 RWF50 output power regulator
BA Current input DC 4...20mA
BA1 Current input DC 4...20mA for remote setpoint change
BP Pressure probe
BP1 Pressure probe
BR Remote setpoint potentiometer
BT1 Thermocouple probe
BT2 Probe Pt100, 2 wires
BT3 Probe Pt100, 3 wires
BT4 Probe Pt100, 3 wires
BTEXT External probe for climatic compensation of the
setpoint
BV Voltage input DC 0...10V
BV1 Voltage input DC 0...10V for remote setpoint change
CN Servomotor connector
F1 Fan motor thermal relay
F2 Pump motor thermal relay
FU Three-phase line fuses
FU1 Three-phase line fuses
FU2 Three-phase line fuses
FU3 Single-phase line fuses
H Remote lockout signal
H1 Remote lockout signal due to leak detection control
H2 Remote motor lockout signal
IN Burner manual stop switch
KM Fan motor contactor
KMP Pump motor contactor
KT1 Triangle contactor
KS1 Star contactor
KL1 Line contactor
KST1 Timing relay for switching from star to triangle
MP Pump motor
MV Fan motor
PA Air pressure switch
PGM Maximum gas pressure switch
PGMin Minimum gas pressure switch
POMax Maximum oil pressure switch
POMin Minimum oil pressure switch
Q1 -Three-phase disconnecting switch of fan motor line
Q2 Single-phase disconnecting switch
Q3 Three-phase disconnecting switch of pump motor line
Q4 Three-phase disconnecting switch of Star/Triangle
line
SM Servomotor
UV Flame sensor
TA Ignition transformer
TL Limit thermostat/pressure switch
TS Safety thermostat/pressure switch
S1 Selector switch
TR Adjustment thermostat/pressure switch
Appendix - Electrical panel layout
VR
VR1
VS
VF
XPGM
XPOMax Maximum oil pressure switch connector
XPOMin Minimum oil pressure switch connector
XRWF
X1
XA
XTB
XVR1
YVPS
Y
77 GB
Oil return valve
Oil return valve
Oil safety valve
Oil operation valve
Maximum gas pressure switch connector
RWF50 terminal board
Burner terminal strip
Starter terminal strip
Burner earth
Oil return valve connector
Leak test
Gas adjustment valve + gas safety valve
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